Hi, all, I wanted to know a couple of things: 1) In doing physics-research (theory, especially): have you ever felt really stupid? So stupid that you don't feel like working anymore, because you just don't feel like having your stupidity pointed out by your work? (I'm guessing there's an overwhelming YES out there). 2) How do you keep researching and working, in spite of that feeling? I just stopped working for a few days on end because of that. I can't be doing that.